Subthreshold neutron interrogator for detection of radioactive materials
US4201912A · kind A · utility
9Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Oct 3, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for detecting fissionable material such as uranium in low concentrations by interrogating with photoneutrons at energy levels below 500 keV, and typically about 26 keV. Induced fast neutrons having energies above 500 keV by the interrogated fissionable material are detected by a liquid scintillator or recoil proportional counter which is sensitive to the induced fast neutrons. Since the induced fast neutrons are proportional to the concentration of fissionable material, detection of induced fast neutrons indicate concentration of the fissionable material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.